<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script>
      let d= new Date();
      document.write("d"+"<br/>");
      document.write(d.toLocaleDateString()+"<br/>");
      document.write(Math.random()+"<br/>");
      document.write(Math.PI+"<br/>");
    </script>
</head>
<body>

</body>
</html>